26.70 mi.; from MD 6 near Riverside north along east bank of Potomac to MD 227 near Pomonkey.

Marked north-south.

MD 224 on maps over the years resembles a worm being pulled southward. It once extended north all the way to
the DC border prior to the coming of modern MD 210. At that time 224 did not yet extend south of Doncaster; it ended at MD 6, taking
the route of current MD 344. From that point south to Riverside was numbered MD 563. MD 223 still ends along the former route, leaving
what would otherwise be an inexplicable 'dead end' in a numbering sense.

13.96 mi.; from road end near Potomac River at Marshall Hall southeast to US 301 1 mile south of White Plains.

Marked east-west.

MD 227 once had its west end at MD 224 in Pomonkey. When 224 north of Pomonkey was removed, 227 was extended over
part of 224 and all of 226 to Marshall Hall. The route takes the name of Marshall Hall Rd two separate times at each end.

Most of this route is now 4 or 6 lane divided; the main drag for traffic in the area near the
Patuxent Naval Air Station. Yes, Hollywood and California are real towns about 4 miles apart along 235.
The road's name comes from an colonial era law which mandated a road that led to a ferry be marked with
three notches on a tree trunk along the route. The whereabouts of this ferry are lost in the mists of time. MD 235 is the
longest intra-county state route.

At the time, this route was named Hurry Road. What is now MD 234 had a gap between Manor Road and current MD 238.
From Chaptico, MD 234 went east along current 238. The eastern half was numbered MD 237.